USGS Earthquake Catalog

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Category: Weather · Auth: none · Status today: OK (HTTP 200) · 180 ms

Example request

This is the exact probe the sentinel runs daily — one read-only GET:

curl -s 'https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&limit=1'

Example output

Captured 2026-08-23 00:54 UTC (application/json, first 400 chars):

{"type":"FeatureCollection","metadata":{"generated":1787445689000,"url":"https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&limit=1","title":"USGS Earthquakes","status":200,"api":"2.7.0","limit":1,"offset":1},"features":[{"type":"Feature","properties":{"mag":1.93,"place":"42 km ESE of Naalehu, Hawaii","time":1787445146580,"updated":1787445369550,"tz":null,"url":"https://earthquake.usg

Checked 2026-08-23 00:54 UTC by the Free Tier Sentinel. Machine-readable: api-health.json.